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30121031301101 = 1317300145416281
BaseRepresentation
bin1101101100101000110010…
…10111101111011111101101
310221122112122110102220010122
412312110121113233133231
512422000333003113401
6144021224420014325
76226113143440316
oct666243127573755
9127575573386118
1030121031301101
119663291a08a34
1234657a85313a5
1313a652a1a2a50
14761c1966b60d
153737b559521b
hex1b65195ef7ed

30121031301101 has 16 divisors (see below), whose sum is σ = 34357598998128. Its totient is φ = 26159777280000.

The previous prime is 30121031301061. The next prime is 30121031301113. The reversal of 30121031301101 is 10110313012103.

It can be written as a sum of positive squares in 8 ways, for example, as 1585456204201 + 28535575096900 = 1259149^2 + 5341870^2 .

It is a de Polignac number, because none of the positive numbers 2k-30121031301101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 30121031301101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121031301191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22044920 + ... + 23371361.

It is an arithmetic number, because the mean of its divisors is an integer number (2147349937383).

Almost surely, 230121031301101 is an apocalyptic number.

It is an amenable number.

30121031301101 is a deficient number, since it is larger than the sum of its proper divisors (4236567697027).

30121031301101 is a wasteful number, since it uses less digits than its factorization.

30121031301101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45419312.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 30121031301101 its reverse (10110313012103), we get a palindrome (40231344313204).

The spelling of 30121031301101 in words is "thirty trillion, one hundred twenty-one billion, thirty-one million, three hundred one thousand, one hundred one".

Divisors: 1 13 17 221 3001 39013 51017 663221 45416281 590411653 772076777 10036998101 136294259281 1771825370653 2317002407777 30121031301101